Installation User guide
SIS
™
 Programming and Control, cont’d
MLC 226 IP Series • SIS Programming and Control
5-32
PRELIMINARY
Command/response table for SIS commands (continued)
Command ASCII (Telnet)
(host to switcher)
URL Encoded (Web)
(host to switcher)
Response
(switcher to host)
Additional description
Button LED control
24
(set button color/lighting)
E X21@
LC
}
W
X21@
LC
|
Lse 
X21@]
This command specifi es which front panel 
buttons (Power On, Power Off, Function/
Room, and/or input selection buttons) light 
and in what colors. You can change the 
lighting of one, several, or all buttons at once. 
 X21@
 = an 8-digit hexadecimal number 
representing the status of button lamp LEDs. 
It is case-sensitive, so use capital letters.
Binary bit map for 
button LED 
status 
Power On 
Power Off 
Function/Room 1 
Function/Room 2 
Function/Room 3 
Function/Room 4 
Input 6 
Input 5 
Input 4 
Input 3 
Input 2 
Input 1 
0#####0# 
X X X X X X X X X X X X 
Convert 
binary to 
hexa- 
decimal. 
0#####0# 
LC 
Insert 
number 
into 
command. 
Esc 
Hex Nibble  Hex Nibble Hex Nibble 
X X X X 0 0 0 0 X X X X X X 0 0 
Hex Nibble 
0 
Hex Nibble Hex Nibble  Hex Nibble 
Add a leading zero to 
the numbers from the 
7 hex nibbles for a 
total of 8 characters. 
Control bits (XX) 
00 = off – no LED is lit, button is unlit 
01 = green LED lights 
10 = red LED lights 
11 = both LEDs light, button is amber 
Power On 
Power Off 
Function/Room 1 
Function/Room 2 
Function/Room 3 
Function/Room 4 
Input 6 
Input 5 
Input 4 
Input 3 
Input 2 
Input 1 
0B7F010B 
1 1 1 1 1 1 1 0 1 1 0 1 
Convert 
to hex. 
0B7F010B 
LC 
Esc 
Hex Nibble 
7 
Hex Nibble 
F 
Hex Nibble 
B 
1 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 
Hex Nibble 
0 
Hex Nibble 
B 
Hex Nibble 
0 
Hex Nibble 
1 
Add a 
leading zero. 
Insert number 
into command. 
Example 
Light buttons: 
• Power On = amber 
• Power Off = red 
• Function 1 = green 
• Function 2, 3 = off 
• Inputs 1, 2, 3, 5 = amber 
• Input 4 = green 
• Input 6 = red 
DISPLAY
1 
2 
3 
4 
5 
6 
VOLUME 
ON 
OFF 
AUTO
IMAGE
MUTE
LAPTOP 
VCR
DVD 
AUX 
VIDEO 
PC
MLC 226 IP Front Panel 










